/*
 * Copyright (c) 2006, 2022, webrx.cn All rights reserved.
 *
 */
package cn.oper;

import java.util.Date;

/**
 * <p>Project: app2022 - M2
 * <p>Powered by webrx On 2022-01-06 14:20:10
 *
* @author webrx [webrx@126.com]
 * @version 1.0
 * @since 17
 */
public class M2 {
    public static void main(String[] args) {

        //java.lang 不用import 直接使用
        //java所有类的基类是java.lang.Object
        Object sdf = new Date();
        if (sdf instanceof Date) {
            System.out.println(2 * 3);
        }

        int a = 10;
        int c = 20;
        System.out.println(a > c);
        System.out.println(a >= c);
        System.out.println(a == c);
        System.out.println(a != c);
        System.out.println(a <= c);
        System.out.println(a < c);

    }
}
